xcode - Pass Variables to a Function in Objective C -

firstly, let me explain have googled this, , can't seem find clear answer this; believe because using incorrect terminology.

i moving ball location in cocos2d/chipmunk ipad app this:

// determine speed of target         int minduration = 2.0;         int maxduration = 4.0;         int rangeduration = maxduration - minduration;         int actualduration = (arc4random() % rangeduration) + minduration;          nslog([nsstring stringwithformat:@"%d",actualduration]);          // create actions         id actionmove = [ccmoveto actionwithduration:0.2                                              position:ccp(location.x, location.y)];         id actionmovedone = [cccallfuncn actionwithtarget:self                                                   selector:@selector(spritemovefinished:)];         [ball runaction:[ccsequence actions:actionmove, actionmovedone, nil]];          [ball retain];  

i want put piece of code function (perhaps called "method" in obj-c, right?) , pass in name of sprite (in case it's "ball"), x coordinate (location.x) , y coordinate (location.y). ball ccsprite , location's integers.

i beginner @ if provide solution please let me know how clean after (like memory deallocation).

thank much!

here have snippet ok you:

• (void)moveball:(ccnode*)ball tolocation:(cgpoint)location {

// determine speed of target int minduration = 2.0; int maxduration = 4.0; int rangeduration = maxduration - minduration; int actualduration = (arc4random() % rangeduration) + minduration;

    nslog([nsstring stringwithformat:@"%d",actualduration]);      // create actions     id actionmove = [ccmoveto actionwithduration:0.2                                          position:ccp(location.x, location.y)];     id actionmovedone = [cccallfuncn actionwithtarget:self                                               selector:@selector(spritemovefinished:)];     [ball runaction:[ccsequence actions:actionmove, actionmovedone, nil]];      //        [ball retain];  //-- makes no sense here   } 

you don't need retain ball in function. anyway, since not specify how ball created, assume correctly retained create it. if give more details it, can further.